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This work proposes a novel algorithm to generate natural language adversarial input for text classification models, in order to investigate the robustness of these models. It involves applying gradient-based perturbation on the sentence…

Information Retrieval · Computer Science 2019-09-11 Yu-Lun Hsieh , Minhao Cheng , Da-Cheng Juan , Wei Wei , Wen-Lian Hsu , Cho-Jui Hsieh

Open-domain neural dialogue models have achieved high performance in response ranking and evaluation tasks. These tasks are formulated as a binary classification of responses given in a dialogue context, and models generally learn to make…

Computation and Language · Computer Science 2021-06-11 Prakhar Gupta , Yulia Tsvetkov , Jeffrey P. Bigham

Generative Adversarial Networks (GANs) have gathered a lot of attention from the computer vision community, yielding impressive results for image generation. Advances in the adversarial generation of natural language from noise however are…

Computation and Language · Computer Science 2017-06-01 Sai Rajeswar , Sandeep Subramanian , Francis Dutil , Christopher Pal , Aaron Courville

We study how to generate captions that are not only accurate in describing an image but also discriminative across different images. The problem is both fundamental and interesting, as most machine-generated captions, despite phenomenal…

Computer Vision and Pattern Recognition · Computer Science 2019-03-12 Dianqi Li , Qiuyuan Huang , Xiaodong He , Lei Zhang , Ming-Ting Sun

This study focused on efficient text generation using generative adversarial networks (GAN). Assuming that the goal is to generate a paragraph of a user-defined topic and sentimental tendency, conventionally the whole network has to be…

Computation and Language · Computer Science 2020-06-23 Chenhan Yuan , Yi-chin Huang , Cheng-Hung Tsai

Today text classification models have been widely used. However, these classifiers are found to be easily fooled by adversarial examples. Fortunately, standard attacking methods generate adversarial texts in a pair-wise way, that is, an…

Computation and Language · Computer Science 2020-03-24 Yankun Ren , Jianbin Lin , Siliang Tang , Jun Zhou , Shuang Yang , Yuan Qi , Xiang Ren

Recently, deep neural networks have significant progress and successful application in various fields, but they are found vulnerable to attack instances, e.g., adversarial examples. State-of-art attack methods can generate attack images by…

Machine Learning · Computer Science 2019-03-19 Ping Yu , Kaitao Song , Jianfeng Lu

Audio captioning aims at generating natural language descriptions for audio clips automatically. Existing audio captioning models have shown promising improvement in recent years. However, these models are mostly trained via maximum…

Audio and Speech Processing · Electrical Eng. & Systems 2022-03-30 Xinhao Mei , Xubo Liu , Jianyuan Sun , Mark D. Plumbley , Wenwu Wang

Most of the existing works for dialogue generation are data-driven models trained directly on corpora crawled from websites. They mainly focus on improving the model architecture to produce better responses but pay little attention to…

Computation and Language · Computer Science 2021-06-23 Xin Li , Piji Li , Yan Wang , Xiaojiang Liu , Wai Lam

Generative adversarial networks (GANs) have shown considerable success, especially in the realistic generation of images. In this work, we apply similar techniques for the generation of text. We propose a novel approach to handle the…

Computation and Language · Computer Science 2019-04-05 Akshay Budhkar , Krishnapriya Vishnubhotla , Safwan Hossain , Frank Rudzicz

Open-domain dialogue generation suffers from the data insufficiency problem due to the vast size of potential responses. In this paper, we propose to explore potential responses by counterfactual reasoning. Given an observed response, the…

Machine Learning · Computer Science 2020-10-12 Qingfu Zhu , Weinan Zhang , Ting Liu , William Yang Wang

Recently, utilizing deep neural networks to build the opendomain dialogue models has become a hot topic. However, the responses generated by these models suffer from many problems such as responses not being contextualized and tend to…

Computation and Language · Computer Science 2023-09-07 Mengjuan Liu , Chenyang Liu , Yunfan Yang , Jiang Liu , Mohan Jing

Automatically generating coherent and semantically meaningful text has many applications in machine translation, dialogue systems, image captioning, etc. Recently, by combining with policy gradient, Generative Adversarial Nets (GAN) that…

Computation and Language · Computer Science 2017-12-11 Jiaxian Guo , Sidi Lu , Han Cai , Weinan Zhang , Yong Yu , Jun Wang

Generative adversarial nets (GAN) has been successfully introduced for generating text to alleviate the exposure bias. However, discriminators in these models only evaluate the entire sequence, which causes feedback sparsity and mode…

Machine Learning · Computer Science 2019-05-31 Xingyuan Chen , Yanzhe Li , Peng Jin , Jiuhua Zhang , Xinyu Dai , Jiajun Chen , Gang Song

End-to-end models for goal-orientated dialogue are challenging to train, because linguistic and strategic aspects are entangled in latent state vectors. We introduce an approach to learning representations of messages in dialogues by…

Computation and Language · Computer Science 2018-06-06 Denis Yarats , Mike Lewis

Latent space based GAN methods and attention based sequence to sequence models have achieved impressive results in text generation and unsupervised machine translation respectively. Leveraging the two domains, we propose an adversarial…

Computation and Language · Computer Science 2019-05-16 Ahmad Rashid , Alan Do-Omri , Md. Akmal Haidar , Qun Liu , Mehdi Rezagholizadeh

The Visual Dialogue task requires an agent to engage in a conversation about an image with a human. It represents an extension of the Visual Question Answering task in that the agent needs to answer a question about an image, but it needs…

Computer Vision and Pattern Recognition · Computer Science 2017-11-22 Qi Wu , Peng Wang , Chunhua Shen , Ian Reid , Anton van den Hengel

We describe a new approach that improves the training of generative adversarial nets (GANs) for synthesizing diverse images from a text input. Our approach is based on the conditional version of GANs and expands on previous work leveraging…

Computer Vision and Pattern Recognition · Computer Science 2019-02-07 Miriam Cha , Youngjune L. Gwon , H. T. Kung

Generative adversarial networks are the state of the art approach towards learned synthetic image generation. Although early successes were mostly unsupervised, bit by bit, this trend has been superseded by approaches based on labelled…

Computer Vision and Pattern Recognition · Computer Science 2020-12-17 Ricard Durall , Kalun Ho , Franz-Josef Pfreundt , Janis Keuper

We present a self-attention based bilingual adversarial text generator (B-GAN) which can learn to generate text from the encoder representation of an unsupervised neural machine translation system. B-GAN is able to generate a distributed…

Computation and Language · Computer Science 2020-11-12 Ahmad Rashid , Alan Do-Omri , Md. Akmal Haidar , Qun Liu , Mehdi Rezagholizadeh